AR-15 Barrels
The AR-15 barrel is one of the most critical parts of your AR-15 – let AT3 Tactical help you find the right AR-15 barrel for your setup.
Barrels come in a variety of lengths, materials, and designs to serve the specific purpose of your weapon. Learn more about AR-15 barrels in our article: Choosing an AR15 Barrel – 5 Things to Consider READ MORE
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- Barrels - Ballistic Advantage (77)
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- Barrels - .223/5.56 (136)
- Barrels - .308/AR-10 Parts (37)
- Barrels - 9mm (27)
- Barrels - .300 Blackout (16)
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- Barrels - Black (84)
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AT3™St. Patty's Sale
AT3™ 5.56 NATO Government Profile 16 Inch AR-15 Barrel
16 Inch Government 5.56 NATO Barrel by AT3 Tactical With a sturdy profile and proven construction, this 16 inch 5.56 NATO barrel features a midlength gas system for smoother recoil....$125.00Only$106.25 -
AT3™St. Patty's Sale
AT3™ .300 Blackout Medium Profile 10.5 Inch AR-15 Barrel
10.5 Inch .300 Blackout Barrel by AT3 Tactical This 10.5 Inch .300 Blackout Barrel makes a great choice for your short, heavy-hitting pistol or SBR AR-15 builds. Made from 4150...$112.50Only$95.63 -
AT3™St. Patty's Sale
AT3™ 5.56 NATO Pencil Profile 16 Inch AR-15 Barrel
16 Inch Pencil 5.56 NATO Barrel by AT3 Tactical Upgrade your AR-15 with a 16 inch pencil barrel to improve your handling and save on weight. While the pencil profile...$125.00Only$106.25 -
AT3™St. Patty's Sale
AT3™ .300 Blackout Medium Profile 16 Inch AR-15 Barrel
16 Inch .300 Blackout Barrel by AT3 Tactical A 16 inch .300 Blackout barrel makes swapping to a heavier hitting cartridge in your favorite rifle simple. This 4150 CMV barrel... -
AT3™St. Patty's Sale
AT3™ 5.56 NATO Government Profile 10.5 Inch AR-15 Barrel
10.5 Inch 5.56 NATO Barrel by AT3 Tactical This 10.5 inch long 5.56 NATO barrel is a perfect match for a shorty AR-15 build that won't break the bank. This...$112.50Only$95.63 -
On Sale
POF 16.5 Inch E2 AR 15 Barrel – 5.56 NATO – Midlength – 4150...
Makes Your Shooting A Breeze Even With Coated Ammunition The POF 16.5 Inch E2 Barrel - 5.56 NATO - Midlength is an excellent option for your next AR build that...$239.99Only$219.99 -
Aero Precision 13.7″ 5.56 Cold Hammer Forged Barrel w/Dimple – Mid-Length
Precise Performance from Aero's 13.7" CHF 5.56 Barrel This 13.7" cold hammer forged 5.56 barrel provides match-grade accuracy and durability for your AR-15 build. Precision mandrel-formed from 4150 CMV steel,... -
Aero Precision 13.9″ 5.56 Chrome Moly Vanadium Barrel – Mid-Length
Optimized Handling from Aero's 13.9" 5.56 Mid-Length Barrel This 13.9" 5.56 mid-length barrel strikes an ideal balance of maneuverability and ballistics for your AR-15 build. Machined from durable 4150 CMV... -
NEW
KAK Industry 12.5 Inch 5.56 NATO AR-15 Barrel
Elevate Your AR-15 Performance with KAK Industry's 12.5 Inch 5.56 NATO Barrel Introducing the KAK Industry 12.5 Inch 5.56 NATO AR-15 Barrel from the VALUE-LINE series – a mid-length gas... -
NEW
KAK Industry 10.5 Inch OE-SPEC .308 WIN AR-10 Barrel
Ultra-Compact .308 Firepower with KAK's 10.5" Barrel This 10.5" .308 WIN barrel delivers unwavering CQB capability for your AR-10 platform. The durable 41V50 chrome moly construction has a nitride finish... -
NEW
KAK Industry 7.5 Inch 5.56 NATO AR-15 Barrel
Enhance Your AR-15 Pistol Build with KAK Industry's 7.5 Inch 5.56 NATO Barrel Meet the KAK Industry 7.5 Inch 5.56 NATO AR-15 Barrel from the VALUE-LINE series, designed specifically for... -
NEW
KAK Industry 13.9 Inch OE-SPEC 5.56 AR-15 Barrel
Enhance Your AR-15 Build with KAK Industry's 13.9 Inch OE-SPEC 5.56 Barrel Introducing the KAK Industry 13.9 Inch OE-SPEC 5.56 AR-15 Barrel from the VALUE-LINE series – a mid-length gas... -
NEW
KAK Industry 8.5 Inch OE-SPEC 300 Blackout AR-15 Barrel
Compact 300 BLK Versatility with KAK's 8.5" Barrel This 8.5" 300 Blackout barrel provides exceptional capability in a nimble AR pistol package. The durable 41V50 chrome moly construction has a... -
NEW
KAK Industry 19 Inch .243 WIN AR-10 Barrel
Enhance your LR-308 with KAK's 19" .243 WIN Rifle Barrel This 19" barrel brings lightweight .243 Winchester capability to your AR-10 platform. The durable 41V50 chrome moly construction has a... -
NEW
KAK Industry 20 Inch Chrome Lined 5.56 AR-15 Barrel
Elevate Your Long-Range Performance with KAK Industry's 20 Inch Chrome Lined 5.56 Barrel Upgrade your AR-15 with the KAK Industry 20-inch Chrome Lined 5.56 AR-15 Barrel, specifically designed for long-range... -
NEW
KAK Industry 12.5 Inch OE-SPEC .308 WIN AR-10 Barrel
Compact .308 Firepower for your AR-10 with KAK's 12.5" Barrel This 12.5" .308 WIN barrel delivers robust mid-range capability in a nimble AR-10 package. The durable 41V50 chrome moly construction... -
NEW
KAK Industry 16 Inch Stainless Fluted AR-15 5.56 Barrel
Superior Style with KAK's 16" Fluted Stainless Barrel This 16-inch fluted stainless steel barrel provides optimized maneuverability and match-grade accuracy for your 5.56 AR-15. Constructed from corrosion-resistant 416 stainless steel,... -
NEW
KAK Industry 8 Inch OE-Spec 9mm AR-15 Barrel
Ultra-Compact 9mm Firepower with KAK's 8" Barrel This 8" barrel provides versatile 9mm capability in an incredibly compact AR platform. The military-grade 41V50 chrome moly construction has a melonite finish... -
NEW
KAK Industry 8 Inch OE-Spec .45 ACP AR-15 Barrel
Compact .45 ACP Firepower with KAK's 8" Barrel This 8" barrel packs heavyweight .45 ACP performance into a nimble package. The military-grade 41V50 chrome moly build has a melonite finish... -
NEW
KAK Industry 12.5 Inch Stainless Steel Midlength Gas .358 WIN AR-10 Barrel
Meet "The Undertaker" – KAK Industry's 12.5" Stainless Steel Midlength Gas .358 WIN AR-10 Barrel Designed for those seeking precision in the LR-308 platform, "The Undertaker" KAK 358 Winchester Barrel... -
NEW
KAK Industry 16 Inch OE-Spec .45 ACP AR-15 Barrel
Unleash .45 ACP Power from Your AR Platform with KAK's 16" Barrel This contract-grade 16" barrel brings stout .45 ACP performance to your AR-15 build. The military-spec 41V50 chrome moly... -
NEW
KAK Industry 6.25 Inch Stainless Steel 300 Blackout AR-15 Barrel
Ultra-Compact Precision in 300 BLK - KAK's 6.25" Stainless "Baby Blond" This 6.25" 300 Blackout barrel brings match-grade accuracy to your AR pistol build. The premium 416 stainless steel construction... -
NEW
KAK Industry 16 Inch Stainless Steel Midlength Gas .358 WIN AR-10 Barrel
Versatile .358 Winchester Performance with KAK's 16" Barrel Unlock the versatility of .358 Winchester with the KAK Industry 16-inch Stainless Steel Midlength Gas AR-10 Barrel. Designed for LR-308 builds, this... -
NEW
KAK Industry 19 Inch Stainless Steel Rifle Gas .358 WIN AR-10 Barrel
Enhance your LR-308 with KAK's 19" .358 WIN Stainless Barrel This 19" stainless steel barrel brings hard-hitting .358 Winchester capability to your AR-10 platform. The durable 416 stainless construction has...
Other AR-15 Upper Receiver Components:
AR 15 Charging Handles
AR 15 Gas Blocks & Tubes
AR 15 Handguards & Quad Rails
AR-15 Barrels
AR-15 Bolt Carrier Groups
AR-15 Front Grips
AR-15 Upper Receivers and Parts
Muzzle Devices
AR-15 Handguard Accessories